"Tänd ett ljus" ("Light a Candle"), written by Niklas Strömstedt and Lasse Lindbom, is a song that was recorded by the Swedish band Triad in 1987. The outro includes Christmas and New Year's greetings in different languages. The song is sung a cappella, with finger-snapping in the background. The single topped the Swedish singles chart on 6 January 1988. The melody was at Svensktoppen for eight weeks during the period 20 December 1987 – 14 February 1988.
The theme of the song is that Christmas will light a candle as a symbol of hope for a better world. It has become a Christmas classic in Sweden, and is often included in Christmas carol collections.
In 1993, Shane covered the song with musical accompaniment. In 2007, Sandelin & Ekman recorded their own cover.